Investigate Geometry and Surface Texture of Selective Laser Melting Built Internal Channels with Varying Inclination Angles using XCT

Weidong Liu, Shubhavardhan Ramadurga Narasimharaju, Huodao Huang, Wenhan Zeng, Zicheng Zhu, Paul Scott, Jane Jiang, Shan Lou

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Additive manufacturing (AM) can produce complex geometries, which is difficult to achieve with traditional processing methods. Selective laser melting (SLM), a commonly used technique in the metal AM industry, performs layer-by-layer fabrication by melting metal powders using one or multiple focused laser beams. Due to the unique manufacturing process, surfaces with different tilt angles are affected by staircase effects and incompletely melted particles, resulting in poor surface quality. The rough surface texture of AM is reported to benefit applications in cooling channels due to increased surface area. Nonetheless, dimensional variation of the cylindrical channel at different inclination angles. For example, the diameter of the vertically constructed channel is closer to the nominal value, and its surface quality is much better. In contrast, the horizontally built channel is affected by the dross formation, has a smaller diameter and is slightly congested.
Original languageEnglish
Title of host publication2022 Summer Topical Meeting
Subtitle of host publicationAdvancing Precision in Additive Manufacturing
PublisherAmerican Society for Precision Engineering, ASPE
Pages223-228
Number of pages6
Volume77
ISBN (Electronic)9781887706551
Publication statusAccepted/In press - 2022
Event2022 Summer Tropical Meeting: Advancing Precision in Additive Manufacturing - Knoxville, United States
Duration: 11 Jul 202214 Jul 2022

Conference

Conference2022 Summer Tropical Meeting
Country/TerritoryUnited States
CityKnoxville
Period11/07/2214/07/22

Fingerprint

Dive into the research topics of 'Investigate Geometry and Surface Texture of Selective Laser Melting Built Internal Channels with Varying Inclination Angles using XCT'. Together they form a unique fingerprint.

Cite this